1 files changed, 45 insertions, 0 deletions
diff --git a/content/browser/compositor/owned_mailbox.cc b/content/browser/compositor/owned_mailbox.cc
new file mode 100644
index 0000000..06a60e4
--- /dev/null
+++ b/content/browser/compositor/owned_mailbox.cc
@@ -0,0 +1,45 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/browser/compositor/owned_mailbox.h"
+
+#include "base/logging.h"
+#include "content/browser/compositor/image_transport_factory.h"
+#include "content/common/gpu/client/gl_helper.h"
+
+namespace content {
+
+OwnedMailbox::OwnedMailbox(GLHelper* gl_helper)
+    : texture_id_(0), sync_point_(0), gl_helper_(gl_helper) {
+  texture_id_ = gl_helper_->CreateTexture();
+  mailbox_ = gl_helper_->ProduceMailboxFromTexture(texture_id_, &sync_point_);
+  ImageTransportFactory::GetInstance()->AddObserver(this);
+}
+
+OwnedMailbox::~OwnedMailbox() {
+  if (gl_helper_)
+    Destroy();
+}
+
+void OwnedMailbox::UpdateSyncPoint(uint32 sync_point) {
+  if (sync_point)
+    sync_point_ = sync_point;
+}
+
+void OwnedMailbox::Destroy() {
+  ImageTransportFactory::GetInstance()->RemoveObserver(this);
+  gl_helper_->WaitSyncPoint(sync_point_);
+  gl_helper_->DeleteTexture(texture_id_);
+  texture_id_ = 0;
+  mailbox_ = gpu::Mailbox();
+  sync_point_ = 0;
+  gl_helper_ = NULL;
+}
+
+void OwnedMailbox::OnLostResources() {
+  if (gl_helper_)
+    Destroy();
+}
+
+}  // namespace content